Christmas is coming and the cookbooks are already flying off the shelves for presents. But what is the most popular cookbook in Ireland this year?

The answer to that may give indigestion to some of the biggest TV chefs.

The latest figures for book sales in Ireland show that the bestselling cookbook here this year is by a pair of cooks who don't have a TV show and who do only vegetarian recipes.

The top-seller this year - by a mile - is the 'Happy Pear Cookbook' by David and Stephen Flynn, the twins who run the Happy Pear restaurant and veg shop in Greystones, Co Wicklow.

Sales of their cookbook this year have been phenomenal, even though the book was published in October 2014 and many people bought it last Christmas.

The fact that it is the number one cookbook this term is extraordinary considering this is its second year and is up against Jamie Oliver, Nigella Lawson, Rachel Allen, Donal Skehan and Neven Maguire, all of whom had new books this year and mainstream TV shows to support them.

The latest Nielsen book sales charts for Ireland show that so far 'The Happy Pear Cookbook' has sold 10,542 copies in 2015 whereas Jamie has sold 5,702, Donal 1,310, Nigella 1,069, Neven 978 and Rachel 857.

David and Stephen's book is so far ahead of the rest that, with just three weeks to go to Christmas, it is certain to be the bestselling cookbook in Ireland in 2015. For a book that is not backed by a big budget TV show and is vegetarian only, this is quite an achievement.

"Our cookbook came about following requests from customers for recipes and cooking tips. Everyone we know wants to be healthy and feed their families wholesome food but the problem is that many people don't really know how. Our book is about showing you how to do this," say David and Stephen.

Along with the recipes is an account of the brothers' first decade in business.